well bought the MAC h pipe =crappy quality

[RioRed94vert]

bought the mac h pipe and the metal pieces aropung the flanges
ALL have broken welds!what s***!What kind of gains from this prehistric creature?does anyone have MAC h pipe dyno tests or know where to find some? :damnit:

 

[5.0_GT_kid]

I have a MAC off-road H-pipe on mine, quality is so-so at best.

Dunno about the dyno tests though...I'd guess 10-15 hp maybe?

 

[94-302-vert]

YOu mean the diamond shaped piece of metal around the flanges that the two bolts go through to ehold it? I have never seen these welded to the pipe. I have seen them wedged there or held on by some kind of coating though.

I wouldn't worry about it.

 

[5.0_GT_kid]

Did you buy this piece new or used?

 

[CManT1914]

YOu mean the diamond shaped piece of metal around the flanges that the two bolts go through to ehold it? I have never seen these welded to the pipe. I have seen them wedged there or held on by some kind of coating though.

I wouldn't worry about it.

The flanges on my h-pipe are not welded like you said, but the ones on my headers are.

 

[94gts]

my mac h pipe is da BOMB


fit awesome AND was made with quality

 

[95StallionGT]

The flanges are NOT supposed to be welded. There supposed to be adjustable to your header.
As for Dyno Tune my gain with MAC o/r H ALONE was 12.6 HP

 

[sage2k]

how much hp increase would it be without a tune?

 

[95StallionGT]

Maybe 6-8

 

[zenboy99]

My MAC h-pipe was 1.5-2" too short, pulled my chrome tips way under my bumer. Fitment was very poor and that was with me, two mechanics, a lift, and prybars fitting it on.

 

[TheDamned]

uhh... i have a MAC o\R h-pipe HTS Coated and it was perfect on install, no complaints at all!

 

[5spd GT]

Yeah, did you buy it new or used?

I have never had a problem with Mac exhaust products. Neither has my friend nor the one that just ordered a Prochamber (be here on Monday for use to put on)

 

[88GT460]

Yeah, did you buy it new or used?

I have never had a problem with Mac exhaust products. Neither has my friend nor the one that just ordered a Prochamber (be here on Monday for use to put on)

you guys have to slow down and let me catch up! damn being broke!

 

[Rootus]

MAC, BBK, etc ... hit or miss. Sometimes they suck, sometimes they're fine. What you pay for with the expensive stuff like Bassani is consistently good quality. I once bought a BBK O/R pipe for my '95, and the way it was bent, it would have had to go -through- the floorpan. Needless to say I chucked it and went with something else...

 

[94-302-vert]

My catco with convertors was the same way. I had to cut the ass side pipe, remove 1/2" of length and rotate the "ear" to get it to fit properly.

 

[5spd GT]

you guys have to slow down and let me catch up! damn being broke!

Hey man, it isn't for me...just the guy you raced in the 98 silver gt (John)...he is going to do it piece by piece.

Don't expect anything performance wise from me anytime soon...I'm broker than broke

 

[Grn92LX]

Don't expect anything performance wise from me anytime soon...I'm broker than broke

So, your saying your broke?

 

[88GT460]

Hey man, it isn't for me...just the guy you raced in the 98 silver gt (John)...he is going to do it piece by piece.

Don't expect anything performance wise from me anytime soon...I'm broker than broke

cough cough.. student loans.. cough..... have you graduated yet ?

 

[5spd GT]

cough cough.. student loans.. cough..... have you graduated yet ?

Lol...that'll do it

Nope, not yet...I'm still working on that...I got another semester or so left and I'll be done there and then I can transfer to the "big college."I hope I run into you in town sometime...I want to see what your 4:30'd geared car has got John was telling me that he got you off the line (you were spinning he said or something) and then he missed second and you blew past him That sounds familiar, like when I first got my 2000 and you had your 5.0L you killed me

Oh and Matt got 11.4 at C-ville after he added a King Cobra clutch/Pro 5.0 shifter and he just runs a Prochamber/dumped flows with 17in. chrome cobra r's...I don't know how he does it. Although I drove his brothers 5.0L better than him. 3mph faster...

 

[mackey]

bought the mac h pipe and the metal pieces aropung the flanges
ALL have broken welds!what s***!What kind of gains from this prehistric creature?does anyone have MAC h pipe dyno tests or know where to find some? :damnit:

Prehistory creature? MAC makes some decent products. For your information it is supposed to be like that. It makes lining up the header bolts with the H-Pipe easier. Why don't you try and contact MAC first with your problem instead of looking like a dumbass on the forums.

Mine were the same way yours were. They are meant to be that way. So leave them.